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2. Punched card - Wikipedia

   en.wikipedia.org/wiki/Punched_card

   Punched card. A 12-row/80-column IBM punched card from the mid-twentieth century. A punched card (also punch card[ 1] or punched-card[ 2]) is a piece of card stock that stores digital data using punched holes. Punched cards were once common in data processing and the control of automated machines . Punched cards were widely used in the 20th ...

3. Computer programming in the punched card era - Wikipedia

   en.wikipedia.org/wiki/Computer_programming_in...

   Punched cards. A punched card is a flexible write-once medium that encodes data, most commonly 80 characters. Groups or "decks" of cards form programs and collections of data. The term is often used interchangeably with punch card, the difference being that an unused card is a "punch card," but once information had been encoded by punching ...

4. Unit record equipment - Wikipedia

   en.wikipedia.org/wiki/Unit_record_equipment

   The term unit record equipment also refers to peripheral equipment attached to computers that reads or writes unit records, e.g., card readers, card punches, printers, MICR readers. IBM was the largest supplier of unit record equipment and this article largely reflects IBM practice and terminology.

5. Punched card input/output - Wikipedia

   en.wikipedia.org/wiki/Punched_card_input/output

   Punched card input/output. A computer punched card reader or just computer card reader is a computer input device used to read computer programs in either source or executable form and data from punched cards. A computer card punch is a computer output device that punches holes in cards. Sometimes computer punch card readers were combined with ...

6. Rental agreement - Wikipedia

   en.wikipedia.org/wiki/Rental_agreement

   Rental agreement. A rental agreement is a contract of rental, usually written, between the owner of a property and a renter who desires to have temporary possession of the property; it is distinguished from a lease, which is more typically for a fixed term. [ 1] As a minimum, the agreement identifies the parties, the property, the term of the ...

7. Keypunch - Wikipedia

   en.wikipedia.org/wiki/Keypunch

   Keypunch. IBM 026 Keypunch. Keypunch operators at work at the U.S. Social Security Administration in the 1940s. Operators compiling hydrographic data for navigation charts on punch cards using the IBM Type 016 Electric Duplicating Key Punch, New Orleans, 1938. A keypunch is a device for precisely punching holes into stiff paper cards at ...

8. IBM 1620 - Wikipedia

   en.wikipedia.org/wiki/IBM_1620

   The IBM 1620 was announced by IBM on October 21, 1959, [ 1] and marketed as an inexpensive scientific computer. [ 2] After a total production of about two thousand machines, it was withdrawn on November 19, 1970. Modified versions of the 1620 were used as the CPU of the IBM 1710 and IBM 1720 Industrial Process Control Systems (making it the ...

9. Reference card - Wikipedia

   en.wikipedia.org/wiki/Reference_card

   Reference card. Reference notes. A reference card or reference sheet (or quick reference card) or crib sheet is a concise bundling of condensed notes about a specific topic, such as mathematical formulas [1] to calculate area/volume, or common syntactic rules and idioms of a particular computer platform, application program, or formal language.